B03D 1/242
Nozzles for injecting gas into the flotation tank
Official title: {Nozzles for injecting gas into the flotation tank}
B03D1/242 (Nozzles for injecting gas into the flotation tank) appears on 80 US grants and 71 published applications in this corpus.
Search patents in B03D- Granted patents
- 80
- Published applications
- 71
- Assignees
- 65
- Inventors
- 196
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 6 |
| 2011 | 2 | 1 |
| 2012 | 5 | 6 |
| 2013 | 1 | 5 |
| 2014 | 4 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 4 |
| 2017 | 0 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 3 |
| 2020 | 3 | 4 |
| 2021 | 3 | 11 |
| 2022 | 6 | 2 |
| 2023 | 1 | 6 |
| 2024 | 7 | 6 |
| 2025 | 2 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coarse particle flotation equipment and method based on coupled fluidization of cyclone and damping4 Aug 2026US 12,697,627 B2Central South University
- Paint sludge separator tank using froth floatation14 Jul 2026US 12,678,715 B2Giffin, Inc.
- Compressed air jet device20 Jan 2026US 12,528,722 B2Utsunomiya Kogyo Co., Ltd.
- Sparger status sensor system1 Jul 2025US 12,343,737 B2Eriez Manufacturing Co.
- Treating per- and poly-fluoroalkyl substances in landfill leachate27 May 2025US 12,312,255 B2University of Florida Research Foundation, Inc.
- Air bubble forming device, air bubble forming method, evaluation device, and evaluation method25 Dec 2025US 2025/0387763 A1Kagoshima University
- Sparger Status Sensor System9 Oct 2025US 2025/0312803 A1Eriez Manufacturing Co.
- Treating per- and poly-fluoroalkyl substances in landfill leachate21 Aug 2025US 2025/0263310 A1
- Vertical Compact Flotation Unit with Air Stripping Enhanced Shallow Sedimentation Effect of Spiral Fins20 Feb 2025US 2025/0059069 A1Beijing Institute of Petrochemical Technology
- Apparatus and method for reagentizing and aerating feed to flotation machines14 Nov 2024US 2024/0375122 A1FLSmidth A/S
Most cited
By later US patents
- Upflow gas eductor induced air floatation separator54US 4,564,457 AL'eau Claire Systems, Inc. · 1986
- Method means for de-silting water38US 4,176,058 A1979
- Injector apparatus having a constriction in a following adjoining mixing pipe35US 4,477,341 AJ. M. Voith GmbH · 1984
- Reconditioning soils contaminated by crude oils or other refined petroleum products26US 4,424,081 A1984
- Method of removing dissolved oil from produced water26US 4,627,922 AGilley and Associates · 1986